Leposternon octostegum (DUMÉRIL, 1851)

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Higher Taxa	Amphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies
Common Names	E: Dumeril's Worm Lizard Portuguese: Cobra-de-Duas-Cabeças, Cobra-Cega
Synonym	Lepidosternon octostegum DUMÉRIL 1851: 150 Lepidosternon otostegum — DUMÉRIL & BOCOURT 1882 (in error) Leposternon octostegum — PETERS et al. 1970: 169 Leposternon octostegum — GANS 2005: 33 Amphisbaena octostegum — MOTT & VIEITES 2009 Leposternon octostegum — RIBEIRO et al. 2018
Distribution	Brazil (Bahia) Type locality: ‘‘Brésil’’.
Reproduction	oviparous
Types	Holotype: MNHN-RA 7055
Diagnosis	DIAGNOSIS: A species of Leposternon with an enlarged, polygonal azygous shield atop the head, which, however, does not exclude the discrete prefrontals, oculars and first temporals shields of the dorsal cephalic area posterior to the rostronasal; one large supralabial and one large infralabial shield on each side of mouth; a large mental shield (postmental shield absent, probably fused with the mental shield); 353–382 ventral, postpectoral halfannuli (Barros-Filho et al. 2019). Additional details (1555 characters) are available for collaborators and contributors. Please contact us for details.
Comment
Etymology	Named after Greek octo (ὀκτώ), eight + Greek stegos (στέγος), roof. (DUMÉRIL 1851, Esteban Lavilla, pers. comm., April 2024)
References	Barros-Filho, J. D. de, Freitas, M., Silva, T., Loguercio, M., & Valverde, M. C. 2019. Redescription of Leposternon octostegum (Duméril, 1851), with an identification key for Brazilian Leposternon species, remarks on meristic methodology, and a proposal for pholidosis nomenclature (Squamata: Amphisbaenidae). Journal of Threatened Taxa, 11(1), 13058-13086 - get paper here Costa Valverde, M.C. & Jesus Ferreira D. de 2005. NEM COBRA, NEM DUAS CABEÇAS: QUEM EU SOU? Uma abordagem sobre os Amphisbaenia. Universidade Estadual de Feira de Santana, 10 pp. Couto-Ferreira, Danilo; Moacir Santos Tinôco, Magno Lima Travassos de Oliveira, Henrique Colombini Browne-Ribeiro, Cecil Pergentino Fazolato, Ricardo Marques da Silva, Gilvana Santos Barreto & Marcelo Alves Dias 2011. Restinga lizards (Reptilia: Squamata) at the Imbassaí Preserve on the northern coast of Bahia, Brazil. Journal of Threatened Taxa 3 (8): 1990–2000 - get paper here Duméril, A.M.C. & A. H. A. Duméril 1851. Catalogue méthodique de la collection des reptiles du Muséum d'Histoire Naturelle de Paris. Gide et Baudry/Roret, Paris, 224 pp. Filho, J.D.B.; M.A. Freitas, T.F.S. Silva, M.C.C. Valverde, M.F.C. Loguercio & D. Veríssimo 2013. On the distribution and ecology of Leposternon octostegum: Putting a subterranean reptile species on the map. Wildl. Biol. Pract. 1(9); 1-6, http://dx.doi.org/10.2461/wbp.2013.9.1 - get paper here Freitas, Marco Antonio de 2014. Squamate reptiles of the Atlantic Forest of northern Bahia, Brazil. Check List 10 (5): 1020-1030 - get paper here Gans, C. 1971. Studies on Amphisbaenians. (4). A review of the amphisbaenid genus Leposternon. Bull. Amer. Mus. Nat. Hist. 144 (6): 379-464 - get paper here Gans, C. 2005. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. Bull. Am. Mus. Nat. Hist. 289: 1-130 - get paper here Gonzalez R. C. et al. 2020. Lista dos Nomes Populares dos Répteis no Brasil – Primeira Versão. Herpetologia Brasileira 9 (2): 121 – 214 - get paper here Mott, Tamí; David R. Vieites 2009. Molecular phylogenetics reveals extreme morphological homoplasy in Brazilian worm lizards challenging current taxonomy. Molecular Phylogenetics and Evolution 51 (2): 190-200 - get paper here Peters, James A.; Donoso-Barros, Roberto & Orejas-Miranda, Braulio 1970. Catalogue of the Neotropical Squamata: Part I Snakes. Bull. US Natl. Mus. 297: 347 pp. - get paper here Ribeiro, Síria; Adriano Lima Silveira and Alfredo P. Santos-jr 2018. A New Species of Leposternon (Squamata: Amphisbaenidae) from Brazilian Cerrado with a Key to Pored Species. Journal of Herpetology 52 (1): 50-58 - get paper here RIBEIRO, SIRIA; ALFREDO P. SANTOS-JR, HUSSAM ZAHER 2015. A new species of Leposternon Wagler, 1824 (Squamata, Amphisbaenia) from northeastern Argentina. Zootaxa 4034 (2): 309–324 - get paper here
External links	IUCN Red List Google images

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